Many of the works of art for which the Committee was responsible, particularly paintings, presented problems of conservation. Some had been damaged in anti-clerical attacks, others darkened by time and lack of care, while others were badly damaged by high levels of humidity and lack of sufficient air. These paintings and many others were restored in the Museo del Prado’s restoration studio and the studio set up by the Central Committee in Valencia, also staffed by Prado restorers. Before paintings were sent to Valencia, and subsequently to Catalunya, they were the subject of a report with photographs on the state of the canvases or panels and whether they might be damaged by transportation. Fragile paintings which were moved despite their condition were prepared before the journey by restorers at the Museo del Prado